Lac Guernesé is a Lake located in Petit-Mécatina; Minganie, Quebec and has an elevation of 97 meters.

• Latitude: 51° 46' 35'' North   (decimal: 51.7764433)
• Longitude: 58° 1' 47'' West   (decimal: -58.0296303)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 97 meters
• Location: Petit-Mécatina; Minganie
• Atlas of Canada Locator Map: Lac Guernesé
• GPS Coordinate Locator Map: Lac Guernesé Lat/Long